Pumping mechanism



PUMPING MECHANISM Filed Dec. 51, 1928 2 Sheets-Sheet 2 INVENTOR Patented Nov. 4, 1930 "UNITED STATES PATENT OFFICE ALLEN A. CANTON, or new YORK, n.1, nssrenoa TO GLACIER, me, or THE STATE or NEW yoax PUMPING MECHANISM Application filed December 31, 1928. Serial No. 329,574.

combination of pump and cooling means which can be manufactured at a small cost.

Another object of the invention is to provide a novel apparatus whereby the motor drive, the compressor and the air blower are all joined in a single unitary structure which can be manufactured at a low cost. I

A further object of the invention is to provide an apparatus of the character described which will operate without noise and will need no special attention.

A still further object of the invention is to provide an air cooled pump or a combination of an air cooled pump and coils which can be made in sizes no larger than the motor which is normally used to drive a pump of such capacity.

Another object of this invention is to provide a pump so constructed as to prevent any possible escape of the fluid which is compressed by said pump and to provide means for dissipating the heat of said pump as well as the heat from condensation coils that may be used in connection with said pump by circulating cold air with a fan from said pump or coils without using a separate motor to rotate sald fan.

Another object of the invention is to provide means whereby two fluids may be pumped or circulated independently through one unitary pump structure.

I obtained these various and other objects which will appear upon reading the detailed description of the drawing which will follow by a simple and compact mechanism. It is to be understood that the mechanism disclosed is for illustrative purposes only and various changes and modifications maybe made by those skilled in the art without departing from the spirit of the inventions defined in the claims.

Referring to the drawings Figure 1 illustrates the device in longitudinal section showing one armature acting to drive a rotary pump and a second armature rotating a fan, both armatures operated by the same motorfield.

Figure 2 shows a modification of Figure 1, whereone armature operates a gear pump and the second armature a centrifugal pump.

Figure 3 shows a longitudinal'section of the field and enclosed cylinder which serves to hold the armature.

Figure 4. shows a transverse section of the field and'cylinder.

Referring to the drawings by reference numerals Numeral 1 represents the magnetic field of the motor in which the armature 3 is keyed on a shaft 12 in bearings 17 which are located in the cylinder heads 10 of the cylinder 2. The cylinder 2 surrounds and encloses an armature 3 thereby separating it from the field 1.

The armature shaft drives a gear 4 which engages in a second gear 4 which runs on a shaft 18 in bearing 19 which is situated in the cylinder head 10. The gears in rotation operate to draw in a fluid through an inlet port 6, through a check valve 8, and to force it out through an outlet port 6 through the check valve 7 compressing it into the coil 9. A second armature 14: is rotatably mounted in the same field 1 on a shaft 15 in bearing 13 which bearing is attached on the external side of the cylinder head 10. This armature 14.- has a fan 16 connected thereto. As the armature revolves the fan is rotated, blowing air on the coil 9 whose heat it is desired to dissipate, at the same time the air is circulated over the field tocarry away its heat. The operation is as follows When the field 1 is electrically energized it starts the armatures 3 and 14 into rotation. The armature 3 rotates the gears 4, 4 drawlng in a fluid from coil 9 through check valve 8 in through port (3. The fluid is compressed between the gears and ejected through port (5 through check valve 7 and compressed in the coil 9.

A simultaneous rotation of the armature 14, rotating the fan 16, circulates a blast of air around the field 1 and the coil 9, thereby dissipating their heat. ,The pump structure is not limlted to the gear type shown in the drawing but ma be any rotary or reciproeating pump. or do both armatures have to rotate at the same speed, but they may be rotated at difi'erent speeds for greater efficiencies. For example: a gear armature may be rotated at a speed best suitable for gear pump operation, while the fan armature may be rotated at a very high speed to cause a greater blast of air.

Figure 2 shows a modification of the construction shown in Figure 1. In this draw-- ing the case 2 is extended to also enclose the second armature, 14. Another cylinder head 21 having inlet and outlet ports 22, 23 serves to seal the cylinder and acts as a casing for the armature 14 which in this instance drives a pump 20 which is shown in the drawing as a centrifugal pump. In operation the armature 3 serves to drive a pump to pump fluid while the armaturelAdrives another pump to ump a second fluid through the ports 22 an 23.

Figure 3 shows in section a construction of the field in the cylinder. The field 1 is made of iron laminations in the manner well known in the motor art. Through the slots 24 run the usual wire coils or windings 25. In the slots is embedded a cylinder of bakelite 2, being smooth and round internally and having projections the same shape as the slots externally. This cylinder being composed of insulating material, is made thinenough to reduce the magnetic gap between the eld and armature to a minimum. A round cylinder head 10, of the same diameter as the cylinder 2 serves either to cover the cylinder 2, or is a dividing plate in the cylinder walls if it is desired to extend the cylinder as an enclosure for a second armature. In the center of this dividing plate or cylinder head 10, and either on one side or on both sides of it, are the bearings 17 and 13.

The utility of this device may be shown by the following illustrations The armature 3 may serve'to operate and pump a refrigerant gas through the compres- SlOIl coil 9. The armature 14 rotating the fan, circulates simultaneously a blast of cooling air over the field and the condensing c0119. V It is obvious that by enclosing this device in a heat insulatin casehavin an inlet and outlet for the circufating air an by attaching an expansion chamber and a valve to this dovice, 1n the manner well known in the refrigerating art, one has a compact self-contained refrigerating unit.

Another example ma be cited where-the armature 3 pumps a r igerant through the coils 9, and the armature 14 drives a water screw to circulate coolin water through a radiator over the field an compression coils.

memes? Similarly the device may be used to cool air in a room, by having a refrigerant gas evaporate in the coil 9, thus producing a low temperature. The armature 14 driving the fan 16 will circulate the air over the cold coil thereby chilling the air. It may also be used for eliminating the, moisture found in the air in a room, by compressing and. condensing the air through a pump which is operated by thearmature 14: thereby separating the water from the air, having the separate water escape through a trap, with the result that dry air is produced at the outlet of this pump, and running this dry air over a coil 9 into which a refrigerant is evaporated by a pump operated by armature 14.

This device may also find application in other industries. For example: in an automobile one armature may drive a pump to pump gasoline while the second may pump oil or cooling water.

Another illustrative case may be shown in the application of this device for oil burners where one armature rotates the pump to compress and spray the oil while the second armature drives a fan to force air'with the oil.

Among the major advantages of a system of this kind, is the obvious compactness of the elements and the lessening of the iron losses in the electrical circuit by running two rotors from one stator.

Having described my invention, what I 1. In a pumpingand cooling mechanism, the combination of a motor field element and two armatures and a plurality of impellers, one driven by each of said armatures, both of said armatures operated by the same field element. 4

2. In a pumping and cooling mechanism, the combination of a motor field element and two armatures and a plurality of impellers, one driven by each of said armatures, both of said armatures operated by the same field, and a closed cylinder having inlet andoutlet ports surrounding one of said armatures.

3. In a pumping device, the combination of a motor field element and two armatures, of a pump operated by each armature, both of said armatures operated by saidfield, a closed cylinder surrounding both armatures and umps, the said two armatures separated rom each other by a dividing partition forming two chambers, each of said chambers having inlet and outlet ports.

4. In a pumping device of the class described, the combination of a motor field element and two armatures, of pumps operated by each armature, both of said armatures operated by said field, a closed cylinder sur- -claim and desire to secure by Letters Patent rounding both armatures and pumps, the

having a hollowed out bination, a common motor field element, a

compartment having two chambers, said motor field element surroundin said compartment, an armature in each 0% said chambers, each of said armatures adapted to revolve in dependent of the other, one of said armatures portion, a pump placed within said hollowed out portion and operated by the rotation of the hollowed out armature.

Signed at New York, in the county of New York, and State of New day of December A. D. 1928.

ALLEN A1 CANTON.

n a pumping device of the class desaid cylinder made of York, this 31st v 

